Improvement in carbureting apparatus



.T. Juno & c. H. PIERSON. fiarhureti nkgApparatus.

No. 140,711. Patentedluly8,1873.

UNITED STATES PATENT QFFICE.

THORWALDSEN JUDD AND CHARLES H; PIERSON, OF PHILADELPHIA, PENN- SYLVANIA, ASSIGNORS TO PHILADELPHIA GAS-MACHINE COMPANY, OF

. SAME PLACE.

IMPROVEMENT IN CARBURETING APPARATUS.

Specification forming part of Letters Patent No. 140,711, dated July 8, 1873 application filed February 7,1873.

To all whom it may concern:

Be it known that we, THORWALDSEN J UDD and CHARLES H. PIERSON, of the city and county of Philadelphia, in the State of Pennsylvania, have jointly invented certain new and useful Improvements in Oarbureting Apparatus, of which the following is a specificaion:

Our invention relates to carburetors specially designed for buildings having steam or other power for driving an air-blower to utilize such blast directly through the air-wheel in the manufacture of illuminating gas; and our improvements consist in driving the air-wheel by means of an air blast or pressure from a blower, the object and purpose of which is to produce a uniform pressure upon the gas from the carbureterthe Wheel being revolved by pressure of air, its momentum will be sufficient to overcome or neutralize any irregularity in the pressure obtained from the blower, thereby dispensing with the gasometer and the weightpropelling motor; also, in the employment of a blast or pressure of air through the intervention of the air-wheel as a means for driving the feed-wheel without propelling;weight devices; further, in the open ends of the feedconducting tubes, arranged to revolve in a vertical plane within a receivin g-chamber having a seal formed therein by the gasoline, whereby an additional guard against back pressure is obtained, and the discharge from the revolving tubes made regular and certain; in the combination of a locking and unlocking sleeve for the weight-cord with the winding-spool, as a means for driving the air-wheel by the usual weight devices when the pressure of air fromthe blower is not in use, and allowing the airwheel to revolve without effecting the weight devices when the air-motor is employed; in the winding device, arranged to be put in and out of gear with the, air-wheel shaft by means accessible above the ground, according as the air or weight motor is used; and, finally, of a carbureting apparatus constructed and arranged to be operated either by air pressure from a blower or by weight-motor, the object being to work the machine altogether by air pressure where possible, or by weight when the engine is stopped, as in factories where it is desired to continue gas-light after work has ceased.

In the accompanying drawings, Figure 1 represents a vertical section of a machine embracing our invention; Fig. 2, a similar section taken at right angles to Fig. 1; Fig. 3, an elevation of the feed-wheel and its conduct ing-tubes; and Fig. 4, a top view of the weightdriving devices.

The air-wheel A, feed-wheel B, carbureter G, and the gasoline-reservoir D are arranged and inclosed within a suitable case, E, buried in the ground, leaving only the weight devices in a small side vault. The air-wheel A is in two separate sections, mounted upon a shaft, F, each section having suitable vanes, and the air is supplied thereto by a pipe, G, leading directly to a forge or air-blower located within the building to be lighted, and the blast and pressure from which-revolve the air-wheel. This wheel, driven underthe pressure of the air, gives a uniform pressure to the gas by reason of the momentum of the wheel under such pressure; and by means of such pressure of air from the blower as a motor the feedwheel 13 is driven from the shaft F of the airwheel by any suitable connection with the shaft H. The air-wheel is immersed in water above its axis, and the air is forced into its adjacent ends through the outer ends into the chamber I, and revolving the wheel passes through openings on in the top of a partition, J, in the case E into an intermediate chamber, J, from whence it passes into the carbureter 0 through openings b at the bottom. (See Fig. 1.) The gasoline-chamber D is located above the air-wheel, and the feed-wheel B revolves therein to feed the gasoline to the carbureter. The feed-wheel has circumferential buckets L, formed like troughs, a portion of which are closed, as at c, so as to fill and hold the gasoline as they arise. Tubes M, arranged upon the face of the wheel B, communicate with the troughs L at their open ends (1, and extend along the shaft H into a chamber, N, Fig. 2, l

with their ends a bent at right angles to said shaft H, and are also bent in a different direction to the branches M, (see Fig. 3,) so that as the latter turn to nearly a horizontal position the under discharging bent branches 0 will be vertical, and so discharge the gasoline into the chamber N, which always has a sufficient supply to form a seal to these bent dischargingends e, which, in connection with the seal-cup O in the carbureter G, prevents all back pressure of the gas. This is to prevent the possible stoppage of the feed from the conducting-tubes M e from the pressure of the gas which might pass the seal-cup O. A pipe, P, forms the seal in the chamber N and leads into the seaLcup O of the carbureter, to supply the latter from the feed-wheel. The carbureter may be of any suitable construction to subject the gasoline to the action of the air, and the gas supplied therefrom to the burners by a pipe, Q. The air-wheel shaft F extends outside of the case E and carries the spool R and devicesfor winding up the cord and weight for driving the airwheel. This weight-motor is not used when the air-pressure motor is employed; and in order to adapt the machine for operation by the weight the spool R is provided with a sleeve, S, turning loosely thereon, to which the cord is secured. This sleeve S has a limited sliding movement upon the spool, and is locked therewith to wind up the weight by means of a ratchet-wheel, f, on the spool-flange g and a tooth, h, upon the end of the sleeve S, thus uniting the two, so that the air-wheel may be driven by the weight. The sleeve S is unlocked from the spool B, to render the latter free from its connection with the weight when the air-motor is used. This connection and disconnection is effected by a yoke-lever, T, pivoted to a supporting-frame, V, with its yoke end between collars c on the sleeve S, and its operating end extending up above the ground. (See Fig. 2.) The spool R is provided with the usual clutch devices for allowing the spool to be turned to wind the cord Without turning the air-wheel back.

With this arrangement of two motors for independent action a winding device is used which can be put into and out of gear with the air-wheel shaft, to allow the latter to turn Without winding or unwinding the weight. This is done by a bevel cog-wheel, W, on the end of the shaft F and a bevel-pinion, X, carried by a vertical shaft, Y, in a sleeve, Z, supported upon the frame V, into which fixed sleeve the pinion-shaft can be raised and secured by screw, 7', to hold it out of gear. The upper end of the pinion-shaft extends above the ground to receive a crank-handle by which to wind the weight. The locking and unlocking of the winding-spool and the engaging and disengaging of the winding-gearing is, by the means described, effected above the ground, so that the machine is managed without requiring the attendant to go into the vault. In factories where the gas is required after the blower is stopped the generation of the gas for a limited number of lights can be continued by connecting the weight-motor, in which case the air is sucked into the carbureter.

. We do not claim regulating the supply of gasoline to the generating-surface according to the speed of the air-wheel, nor the arrangement or use of the cone-pulleys or fusee for that purpose; nor do we claim supplying the gasoline in measured quantities to the generating-surfaces.

Having described our invention, we claim- 1. In a carburetin g apparatus, the air-wheel A thereof, driven by an air blast or force which supplies the carbureter and is the motor to the machine.

2. The feed wheel B and the air-wheel A, both driven alike by means of an air-blast or air-pressure motor, essentially as described.

3. The bent ends 6 of the conductingtnbes M, arranged to revolve in avertical plane within a sealed chamber, N, as and to obtain the advantages described.

4. Thesleeve S for the weight-cord, in combination with the spoolR of the air-wheel shaft, as a means for putting the weight-propelling devices in and out of gear with the air-wheel shaft, to adapt the machine for use by either of two independent motors, as described.

5. The hand-leverT in combination with the separate sleeve S for the cord, as a means for putting the cord-sleeve in and out of gear, according as either the weight or air-blast motor is used, as described.

6. The gearing device W X Y Z for winding the weight, arranged to be put into gear to wind the weight without the attendant having to go into the vault, as described.

7. A carbureting apparatus having the airwheel driven by an air-blast or Weight motor, when these motors are employed to operate the carburetin g apparatus independent of each other, as may be required.

In testimony whereof we have hereunto set our hands.

THORWA LDSEN J UDD. CHARLES H. PIERSON.

*itnesses:

GEo. W. HOLLINGSWORTH, EDWARD B. DENNY. 

